Answer:
b. An island 30 hectares in size that is 10 kilometers off the coast of the mainland
Explanation:
- Based on the theory of the island biography the highest number of the species would be found in the islands that have to be an island of the 30 hectares and is separate from the mainland coasts at a distance of the 10 km. And various factors affect the species diversity and richness of the isolated systems with a specific relationship to the oceanic islands.
Answer:
People are concerned because humans are pretty dependant on fossil fuels! Did you know 70% of Chinas electricity is Generated from Coal? Thats how dependant we are on Fossil fuels in just one short example,however Fossil fuels aren't bad they are great energy sources! :D Hope that helped ~Feel Free to mark brainliest~
One negative consequence could be that the economy can't grow and get better.
Below I have included an image that has the measure of all of the angles on it.
We can find the measures of the angles here due to the laws about complimentary angles. A pair of complimentary angles can be formed when 2 lines are perpendicular, and when added together, will always equal 90. The pair are the angles that are not directly adjacent from each other. In this figure, "x" and "(4x-10)" are a pair. According to another law, opposite angles, or adjacent angles, will always be equal to each other. Using the logic above is how we can find the measure of all angles.
Since one angle has a box, we know the lines are perpendicular, and that the laws of complimentary angles apply. We can also use that to see that the angle diagonal from it is equal to 90.
To solve for the other measures, we need to add the 2 equations together and set them equal to 90 (because of that law we talked about before).
x+(4x-10)=90
5x-10=90
+10+10
5x=100
/5 /5
x=20
Now that we know x equals 20, we can substitute that value in and solve.
x=20
=(4x-10)
=(4*20-10)
=(80-10)
=70
We also know this is correct because 20 and 70 equal 90.